Solve the equation.-7x = -21
A. {2}
B. {-14}
C. {3}
D. {14}
Answer: C
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Write the first five terms of the geometric sequence with a = 5 and a fourth term of 135.
A. 5, 15, 45, 135, 405 B. 5, 16, 41, 138, 405 C. 5, 15, 46, 138, 402 D. 5, 8, 11, 14, 17
Find the exact value of the logarithmic expression.log1/5 25
A. 2
B. 
C. - 
D. -2
Solve the problem.An audio speaker that weighs 50 pounds hangs from the ceiling of a restaurant from two cables as shown in the figure. To two decimal places, what is the tension in the two cables? 
A. Tension in right cable: 35.90 lb; tension in left cable: 41.59 lb B. Tension in right cable: 35.90 lb; tension in left cable: 14.10 lb C. Tension in right cable: 14.10 lb; tension in left cable: 41.59 lb D. Tension in right cable: 41.59 lb; tension in left cable: 35.90 lb
Decide whether the expression is or is not an identity.sin (A + 4?) = cos (A + ?)
A. Not an identity B. Identity